Short version of my scenario: Submitting the survey returns "Error 101 (net::ERR_CONNECTION_RESET): "
I test the lime by creating a new fresh survey step by step and test it.
Once I place a multi short text question then the same error occured.

I tried first having some question groups, everything went good. And then I started adding some questions, and it was OK

but once I have added a multi short text type question, I received the same error. I do not know why

I create a new fresh survey, added first questiopn group with a multi short text question it worked!!!

I added seconde question group with only one multishort text question

it gave the same error, I remove the second question group, it worked..

thats why I suspect somthing is going on with the multi short text questions.